1  /* Test of gang-private array variable declared on loop directive, with
       2     broadcasting to partitioned workers.  */
       3  
       4  /* { dg-additional-options "--param=openacc-kernels=decompose" } */
       5  
       6  /* { dg-additional-options "-fopt-info-omp-all" }
       7     { dg-additional-options "-foffload=-fopt-info-omp-all" } */
       8  
       9  /* { dg-additional-options "--param=openacc-privatization=noisy" }
      10     { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
      11     Prune a few: uninteresting:
      12     { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
      13  
      14  /* It's only with Tcl 8.5 (released in 2007) that "the variable 'varName'
      15     passed to 'incr' may be unset, and in that case, it will be set to [...]",
      16     so to maintain compatibility with earlier Tcl releases, we manually
      17     initialize counter variables:
      18     { dg-line l_dummy[variable c_compute 0 c_loop_i 0 c_loop_j 0 c_loop_k 0] }
      19     { dg-message "dummy" "" { target iN-VAl-Id } l_dummy } to avoid
      20     "WARNING: dg-line var l_dummy defined, but not used".  */
      21  
      22  #include <assert.h>
      23  
      24  int
      25  main (int argc, char* argv[])
      26  {
      27    int x[8], i, arr[32 * 32];
      28  
      29    for (i = 0; i < 32 * 32; i++)
      30      arr[i] = i;
      31  
      32    #pragma acc kernels copy(arr)
      33    {
      34      /* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } .+1 } */
      35      #pragma acc loop gang(num:32) private(x) /* { dg-line l_loop_i[incr c_loop_i] } */
      36      /* { dg-note {variable 'x' in 'private' clause is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_loop_i$c_loop_i } */
      37      /* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
      38      /* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
      39      for (i = 0; i < 32; i++)
      40        {
      41          for (int j = 0; j < 8; j++)
      42  	  x[j] = j * 2;
      43  
      44  	#pragma acc loop worker(num:32) /* { dg-line l_loop_j[incr c_loop_j] } */
      45  	/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
      46  	for (int j = 0; j < 32; j++)
      47  	  arr[i * 32 + j] += x[j % 8];
      48        }
      49      /* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i$c_loop_i } */
      50    }
      51  
      52    for (i = 0; i < 32 * 32; i++)
      53      assert (arr[i] == i + (i % 8) * 2);
      54  
      55    return 0;
      56  }